Territory



(No Model.)

' SPARK ARRESTBR.

210,292,762," y Patented Jan. 29, 1884.

M i I hay? 'UNITED' STATES PATENT OFFICE. l,

PETER MURRAY, OE INnIANAPOLIs, INDIANA, AssIGNOR'OE ONE-HALE To PATRICK MURRAY, OE ALMA MINE,l EvANsTON, WYOMING TERRITORY.

s-PARK-ARRESTER.

SPECIFICATION forming part'of Letters Patent No. 292,760, dated January 29, 1884.

' I Application filed August 13,1883. (No Amodel.)

the smoke-arch without impairing the draft of theengine, and will be readily understood from the following explanation.

In the drawings, Figure l is a side view of my stack, and Fig. 2 is a vertical section, showing the intern al construction and arrangement of parts.

B is the barrel of the stack; C, a cone secured to and over the top of the barrel by braces or bolts b.

Lf is the lower, and Uf the upper, flare, and T the top of the stack.

S'is a shelf' inclined from the joints of the ares to the opening o of Dp, which is a discharge-pipe leading from the bottom of the flare Lf to the smoke-archfbelow, being outside the barrel B. This shelf S fits closely around the outside of the barrel, and serves to. carry down to the top of the discharge-pipe all the ashes and cinders which fall upon it. The cone -O is of somewhat greater diameter than the barrel, as shown in Fig. 2, and the draft passes out between the top of the barrel and the top Of the cone, the sparks and cinders striking against the sloping sides OI theupper flare above the line of union of the two flares and about midway between this line and the point where the upper flare joins the top T. It will also be noticed that the barrel B extends above the line of union of the two ares.

I am aware that cones have been used over the barrel of a smoke-stack, but they have been Vso placed that they-did not arrest the sparks,

and the latter were carried out the top, and various devices-such as wire-nettings--have been used to detain them; but these nettings lies the essence of my invention.

out at the top T. Upon a recent and severe 6o trial with an old locomotive the device was completely successful, and vno sparks or cinders whatever were carried out the top by the draft, which was perfect, and the engine made more steam and worked better, than she ever had before; and in the location and elevation of the barrel B and its cone C, as described, If the cone be dropped down to the level of the line of junction of the flares, or raised too high, it will not arrest the sparks, and they will pass out the top T, carried upward by the draft.

I am aware thatspark-arrestersA have been constructed with the top of the barrel below the union of the flares, and am familiar with 7 5 the device shown in Nes'miths patent of VAugust 25, 1874:; but all these devices are encumonly claim as my invention the points herein show and described.

What I claim as my invention, and desire to secure by Letters Patent, is the following:

`loered with parts which, in my judgment, prevent their successful operation and I disclaim l .any and all such forms of construction, and 8o 1. A smoke-stack for locomotive-engines,

h avin g a double-flaring head, wherein'the barrel extends slightly above the line of union of the upper and lower flares, and is provided with a cone-cover of greater diameter, so arranged and sustained by braces at such a point 9o above the mouth of the barrel that the upgoing draft diverted by the cone will strike the upper flare at a point about midway between the junction of the iiares and the top, substantially as described.

. 2. In a smoke-stack for. locomotives, a barrel extending above the line of union of the flares, an inverted cone of greater diameter,

esa-Q...

sustained by braces at such :L point above the the smoke-arch, all combined substantially :1S 1o mouth of the barrel that the draft diverted by described. the cone will strike about middle of the up- In witness whereol' I have hereunto set lny .per flare, :L top composed of two flaring parts hund this SOlh day of July, 1883. connected at their widest bases7 im inclined l Wi ,1 r V Y shelf surrounding the barrel and connected to L ILh ML IRX the sides of the lower fiere7 and a discharge` l Nl'iinesses:

pipe outside the barrel and opening above into l C. l. .Ii-leo es,

I l. SIPKUJH.

the bottom ot' the lower 'Hure und below into 

